"Application of the Law of Heredity.-A moment’s consideration of the physiology of heredity will disclose a sufficient reason why marriage should be deferred until the development of the body is wholly complete. The matrimonial relation implies reproduction. Reproduction is effected through the union of the ovum with the zoosperm. These elements, as we have already seen, are complete representatives of the individuals producing them, being composed-as supposed-of minute gemmules which are destined to be developed into cell and organs in the new being, each preserving its resemblance to the cell within the parent which produced it. The perfection of the new being, then, must be largely dependent on the integrity and perfection of the sexual elements. If the body is still incomplete, the reproductive elements must also be incomplete; and, in consequence, the progeny must be equally immature."